Workers paint wall of Potala Palace during annual renovation in Tibet

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A worker paints the wall of the Potala Palace during an annual renovation of the ancient architectural complex in Lhasa, capital of southwest China's Tibet Autonomous Region, Oct. 28, 2020. (Xinhua/Jigme Dorji)

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Workers paint the wall of the Potala Palace during an annual renovation of the ancient architectural complex in Lhasa, capital of southwest China's Tibet Autonomous Region, Oct. 28, 2020. (Xinhua/Sun Fei)

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A worker paints the wall of the Potala Palace during an annual renovation of the ancient architectural complex in Lhasa, capital of southwest China's Tibet Autonomous Region, Oct. 28, 2020. (Xinhua/Purbu Zhaxi)

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Workers paint the wall of the Potala Palace during an annual renovation of the ancient architectural complex in Lhasa, capital of southwest China's Tibet Autonomous Region, Oct. 28, 2020. (Xinhua/Jigme Dorji)

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Workers paint the wall of the Potala Palace during an annual renovation of the ancient architectural complex in Lhasa, capital of southwest China's Tibet Autonomous Region, Oct. 28, 2020. (Xinhua/Jigme Dorji)

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A worker paints the wall of the Potala Palace during an annual renovation of the ancient architectural complex in Lhasa, capital of southwest China's Tibet Autonomous Region, Oct. 28, 2020. (Xinhua/Purbu Zhaxi)

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A worker paints the wall of the Potala Palace during an annual renovation of the ancient architectural complex in Lhasa, capital of southwest China's Tibet Autonomous Region, Oct. 27, 2020. (Xinhua/Chogo)

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A worker paints the wall of the Potala Palace during an annual renovation of the ancient architectural complex in Lhasa, capital of southwest China's Tibet Autonomous Region, Oct. 27, 2020. (Xinhua/Chogo)

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Workers paint the wall of the Potala Palace during an annual renovation of the ancient architectural complex in Lhasa, capital of southwest China's Tibet Autonomous Region, Oct. 28, 2020. (Xinhua/Sun Fei)